Abstract: A battery including an electrode assembly including a positive electrode, a negative electrode, and a separator therebetween; a case housing the electrode assembly; a cap plate coupled to the case; a collector plate coupled to the electrode assembly; and a terminal coupled to the collector plate and passing through the cap plate, wherein the terminal includes a terminal protrusion and a bottom protrusion, the collector plate includes an electrode region coupled to the electrode assembly and a terminal region coupled to the terminal, the terminal region including a combining hole passing therethrough, the combining hole having a noncircular shape, and the bottom protrusion of the terminal has an interengaging, matching shape relative to the combining hole, passes through the combining hole of the collector plate, and is welded to a lower surface of the collector plate.

Abstract: A cylindrical nonaqueous electrolyte secondary battery includes: a wound electrode unit as a wound electrode laminate of belt-like positive and negative electrodes laminated via a separator, the positive electrode including a positive electrode collector and a positive electrode active material layer, and the negative electrode including a negative electrode collector and a negative electrode active material layer; an adhesive member provided to cover the wound electrode laminate at a terminating end portion lying on an outer side of the wound electrode unit; and a battery canister housing the wound electrode unit, the adhesive member including a base material, and an adhesive layer provided on a whole surface or on at least a part of the surface on one side of the base material, and the base material being a mixture of a resin material of high swellability and a resin material of high melting point.

Abstract: A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.

Abstract: A fuel cell includes separators-sandwiching electrolyte electrode assemblies. The separators each include first and second fuel gas supply sections through which a fuel gas supply passage extends centrally, first and second bridges extending radially outwardly from the first and second fuel gas supply sections and first and second sandwiching sections connected to the first and second bridges. A fuel gas channel and an oxygen-containing gas channel are provided in the first and second sandwiching sections. Each of the first sandwiching sections has pairs of fuel gas outlets, and a fuel gas consumed in the fuel gas channel is discharged through the fuel gas outlets.

Abstract: The present invention comprises fuel cells 84 disposed within a fuel cell module 2, a reformer 20, a reformer temperature sensor 148 for detecting a reforming state temperature, and a control section 110 for controlling the operation of the fuel cell module. The control section prohibits the normal startup POX and executes a restart control different from the normal startup POX when the reforming state temperature is at least in a high temperature region within the POX temperature band in a state in which the operation of the solid oxide fuel cell module is stopped.

Abstract: A cap assembly of a cylindrical rechargeable battery includes an integrated gasket obtained by integrating a first gasket covering a top cap, a PTC element, and a safety vent and a second gasket covering a CID. The rechargeable battery including the cap assembly has the advantages of increasing a contact area between a safety vent and a gasket by integrating the existing dual-gasket structure to thereby increase a sealing effect, increasing a short circuit reactivity of the CID by freely changing the gasket structure according to the diameter of the current interrupting member to thereby improve stability, simplify components, and reduce a production unit cost.

Abstract: Systems and methods for regulating fuel cell air flow, such as during low loads and/or cold temperature operation. These systems and methods may include providing a thermal management fluid, such as air, to the fuel cell stack, transferring thermal energy between the thermal management fluid and the fuel cell stack, and varying the flow rate of the thermal management fluid that comes into contact with the fuel cell stack to maintain the temperature of the fuel cell stack within an acceptable temperature range. Varying the flow rate of the thermal management fluid may include varying the overall supply rate of the thermal management fluid within the fuel cell system and/or providing an alternative flow path for the thermal management fluid such that a portion of the thermal management fluid supplied by the fuel cell system does not come into contact with the fuel cell stack.

Abstract: The invention provides catalysts that are not corroded in acidic electrolytes or at high potential, have excellent durability and show high oxygen reducing ability. In a process of producing fuel cell electrodes containing a metal oxide and an electron conductive substance, the process includes steps in which a sugar is applied and carbonized on a support layer supporting the metal oxide and the electron conductive substance.

Abstract: A battery unit includes a battery housing, a module assembly, electrode portions, fins and a blower. The module assembly includes battery modules having positive terminals and negative terminals. The electrode portions are disposed to connect the positive and negative terminals of the battery modules. The fins are disposed along the electrode portions. The module assembly defines a first surface and a second surface along a stacking direction of the battery modules. The blower is disposed to supply air toward the fins over a range substantially equal to a dimension of the module assembly in the stacking direction. A rotation shaft of the blower is located between a first plane that includes the first surface of the module assembly and a second plane that includes the second surface of the module assembly. The fins have surface areas that increase toward a downstream location with respect to a flow of the air.

Abstract: A power generating system may include a plurality of bipolar plates stacked to form a fuel cell assembly having an inlet side, a non-inlet side, an inlet header extending from the inlet side to the non-inlet side, an active area, and an inlet transition area. The inlet transition area may be in fluid communication with (i) the inlet header via feed passageways formed in each of the plates and (ii) the active area. The feed passageways of the plates located proximate to the inlet side may be generally smaller and/or fewer in number than the feed passageways of the plates located proximate to the non-inlet side such that, during operation of the fuel cell assembly, a flow velocity of gas through the active area is generally constant.

Abstract: A fixture is configured for holding terminals of a battery in alignment. The fixture includes a first and a second side member. The first and second side members each include a plurality of first and second teeth, respectively. The second side member is movable relative to the first side member between an open position and a closed position. The second side member opposes the first side member such that a number of the first teeth oppose a corresponding number of the second teeth and a slit is defined between each of the adjacent teeth when the fixture is in the open position. Likewise, the second side member opposes the first side member such that the number of the first teeth are staggered from the corresponding number of the second teeth to reduce the slit in size when the fixture is in the closed position.

Abstract: A surface-mediated, lithium ion-exchanging energy storage device comprising: (a) A positive electrode (cathode) comprising a cathode active material that is not a functional material (bearing no functional group reactive with lithium), but having a surface area to capture or store lithium thereon; (b) A negative electrode (anode) comprising an anode active material having a surface area to capture or store lithium thereon; (c) A porous separator disposed between the two electrodes; and (d) A lithium-containing electrolyte in physical contact with the two electrodes, wherein the anode active material and/or the cathode active material has a specific surface area of no less than 100 m2/g in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; wherein at least one of the two electrodes contains therein a lithium source prior to a first charge or a first discharge cycle of the energy storage device.

Abstract: A drainage system for a fuel cell, including a gas-liquid separator configured to separate fuel gas and liquid water from a gas-liquid mixture discharged from the fuel cell, a water tank configured to receive the liquid water separated by the gas-liquid separator, a drain valve in fluid communication with the water tank, the drain valve configured to selectively discharge the liquid water from the water tank, and a control unit configured to selectively open and close the drain valve. The water tank includes a lower portion having a first horizontal cross sectional area and an upper portion having a second horizontal cross sectional area, the first horizontal cross sectional area being smaller than the second horizontal cross sectional area.

Abstract: A method for preparing a positive active material for a rechargeable lithium battery includes: a) providing a furnace and a crucible that is included in the furnace; b) putting a mixture of a composite metal precursor and a lithium compound into the crucible; and c) preparing a positive active material for a rechargeable lithium battery by firing the mixture in the crucible, wherein during the process b), the mixture in the crucible is positioned so that a minimum distance from a predetermined position inside the mixture to an exterior of the mixture in the crucible is about 5 cm or less. A rechargeable lithium made by this method is disclosed.

Abstract: A lamellar structure graphite foil is used as a material for a separator for a fuel cell, and a hydrophobic layer is formed by impregnation on flow-field channels of the graphite foil. Such a separator is manufactured by forming the flow field channel by etching the graphite foil formed with the mask pattern thereon and forming a hydrophobic layer by impregnation. According to such a separator, performance of a fuel cell stack is enhanced and the manufacturing process of a separator is simplified.

Abstract: Disclosed herein is a battery pack, temperature of which is controllable, including at least one battery module including a plurality of battery cells or unit modules (‘unit cells’) which can be charged and discharged, a fluid channel formed such that a fluid to cool or heat the battery module passes through the battery module, a flow change unit located on the fluid channel to change a flow direction of the fluid based on a temperature state of the battery module, and an operation controller to control an operation of the flow change unit based on information regarding the temperature of the battery module.

Abstract: A secondary battery including: a bare cell including an electrode assembly, a can to receive the electrode assembly, and a cap assembly attached to an opening of the top of the can; a protection circuit board electrically connected to the bare cell, and a molded resin disposed between the cap assembly and the protection circuit board. The cap assembly includes a cap plate attached to the top of the can and having a through-hole, an electrode terminal extending through the through-hole; and a gasket disposed around the electrode terminal. A portion of the molded resin is disposed in a gap between the electrode terminal and an upper surface of the cap plate.

Abstract: A fuel cell system has different allowable changes per unit time in an operation range of a fuel cell, in both a first output range of the fuel cell and a second output range of the fuel cell, the second output range being lower than the first output range. The allowable change per unit time in the output of the fuel cell in the second output range is smaller than the allowable change per unit time in the output of the fuel cell in the first output range.

Abstract: Provided is an interconnector material which is chemically stable in both oxidation atmospheres and reduction atmospheres, has a high electron conductivity (electric conductivity), a low ionic conductivity, does not contain Cr, and enables a reduction in sintering temperature. The interconnector material is arranged between a plurality of cells each composed of an anode layer, a solid electrolyte layer, and a cathode layer stacked sequentially, and electrically connects the plurality of cells to each other in series in a solid electrolyte fuel cell. The interconnector is formed of a ceramic composition represented by the composition formula La(Fe1-xAlx)O3 in which 0<x<0.5.

Abstract: Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature.